I'm new to the V6. I thought I had a good exhaust system picked out but I have been reading around and I hear all this talk about "X","Y","H" pipes and I have no idea what all this is really all about. I have been searching online and haven’t found any good information. Is there a sticky around here on this?

Btw i was looking at the Magnaflow originally.

 

X, Y, H is pretty simple. Look at the shape of the letter and that is the shape of the pipe that connects your cats (top of the letter) to the rest of your exhaust (the bottom of the letter). X and H would be for a true dual exhaust since there is two outlets where a Y goes to one. Hope that makes sense.

As for the Magnaflow, it connects to your OEM Y pipe. So it replaces everything past the Y pipe. As you look around the forum you will see the different exhausts offered and how they are constructed.

 

H pipe


Y pipe (with straight pipe)


X pipe:


These are model specific and generic pics for reference.

 

That makes a lot of sense actually thanks! It seems most people seem to go with X pipes. Do Y pipes offer less of a power output? I’m looking for a system that offers gains but isn’t loud. Something a bit louder with a bit more rumble and a deeper tone. I was looking and I feel like the Magna flow would be able to offer that.

 

Yes and no? Too many factors to say w/o writing a 10 page essay. Time for you to do your own research. You'll learn more than anyone would be willing to explain.

 

Copy/pasted from quick Google search (I won't pretend like I wrote this, like so many do what they post tech explanations)... I will say however, that in general (from what I have seen), X pipe configurations have resulted in better gains than Y (not many, if any runs an H on this car).


H Pipe:

An H pipe helps equalize the exhaust pressures between the two banks of tubing as the hot gases and sound waves travel down the tubing. This, in effect, relieves the exhaust pressures as they travel through the H tubing, generally creating an increase in torque. This will also give an added sound reduction when the sound waves combine inside the H tubing.

X Pipe:

An X pipe will actually help to scavenge exhaust pulses from one bank as the opposite exhaust pulse passes through the X, thus creating a vacuum effect at the valve, resulting in a cleaner burn in the cylinder. This generally equals added torque and, like the H pipe, a reduction in sound as the sound waves combine in the X pipe.

Y Pipe:

The Y pipe, which works well on several applications, utilizes a dual exhaust off the manifolds/ headers and runs back a specified distance, then the two pipes enter the Y pipe and become one larger pipe. This Y helps each bank to scavenge the other as the pulses travel down through the Y and are joined together into the single common tubing. This creates a vacuum in the exhaust valve, resulting in a cleaner burn in the cylinder. A sound reduction is also achieved as the sound waves combine in the Y pipe.

 

If thats the exhaust your looking for, I would recommend the ARK exhaust, no not ARC, I said ARK. I won it back at the HB meet a few months back. It looks just like the HKS exhaust, with dual cannister look burn't tips they are not adjustable. It has a x-pipe. I have the HKS exhaust which I absolutely love, thats why I just sold it to one of my peeps on my Team. The exhaust note is comparable to the Tanabe exhaust IMO, very mild. ARK has a huge thread on myG37 check it out so if you like it you can preorder it.

 

G35 Coupe



G37 Coupe - Pre Order today.

 

This is a very nice exhaust guys. The craftsmanship is excellent and it looks great, I am very impressed with the exhaust. Order up Guys.

 

thank you for the awesome comments

 

Heres a question... Im really considering the Magnaflow exhaust aswell and thinking on getting a stillen Y pipe to go with it.. Only reason im considering this is because i have RAS on my coupe and most trudual exhausts either dont fit or i have to do some modification which i am not looking to do.. Would the Magnaflow and stillen Y pipe give me good gains? and is it a good exhausts.